Entangling Projectiles and Systems for their Use

ABSTRACT

A projectile deployment system includes an entangling projectile including a pair of pellets and a tether connecting the pellets. A projectile casing includes a pair of sockets, each socket sized to carry one of the pair of pellets and a selectively activatable pressure source, carried by the projectile casing. The pressure source is capable of expelling the entangling projectile from the projectile casing toward a subject. A launcher carries an activator operable to activate the pressure source to expel the entangling projectile from the projectile casing toward the subject. The projectile casing is removably engageable with the launcher to allow removal of the projectile casing from the launcher after expulsion of the entangling projectile from the projectile casing.

PRIORITY CLAIM

This application is a continuation of U.S. patent application Ser. No. 16/167,920, filed Oct. 23, 2018, which is a continuation of U.S. patent application Ser. No. 15/467,958, filed Mar. 23, 2017, now issued as U.S. Pat. No. 10,107,599, which is a continuation-in-part of U.S. patent application Ser. No. 15/081,440, filed Mar. 25, 2016, now issued as U.S. Pat. No. 10,036,615, which is a continuation-in-part of U.S. patent application Ser. No. 15/399,537, filed Jan. 5, 2017, each of which is hereby incorporated herein by reference in its entirety.

BACKGROUND OF THE INVENTION Field of the Invention

The present invention relates generally to non-lethal, ranged weapons systems to aid in impeding or subduing hostile or fleeing persons of interest.

Related Art

It has been recognized for some time that police and military personnel can benefit from the use of weapons and devices other than firearms to deal with some hostile situations. While firearms are necessary tools in law enforcement, they provide a level of force that is sometimes unwarranted. In many cases, law enforcement personnel may wish to deal with a situation without resorting to use of a firearm. It is generally accepted, however, that engaging in hand-to-hand combat is not a desirable choice.

For at least these reasons, ranged engagement devices such as the Taser™ have been developed to provide an alternative. While such electrical muscular disruption (“EMD”) weapons have been used with some success, debates continue as to whether such devices are as safe as claimed or are an appropriate level of force for many situations. Other ranged engagement solutions, such as mace or pepper spray, are very limited in range and are often criticized for the pain caused to subjects and the potential for such solutions to affect police or bystanders.

As such, designers continue to seek non-lethal solutions that can be effectively used by police or law enforcement especially to impede or subdue fleeing subjects.

SUMMARY OF THE INVENTION

In accordance with one aspect of the invention, a projectile deployment system is provided, including an entangling projectile, including a pair of pellets and a tether connecting the pellets. A projectile casing can include a pair of sockets, each socket sized to carry one of the pair of pellets, and a selectively activatable pressure source, carried by the projectile casing. The pressure source can be capable of expelling the entangling projectile from the projectile casing toward a subject. A launcher can carry an activator operable to activate the pressure source to expel the entangling projectile from the projectile casing toward the subject. The projectile casing can be removably engageable with the launcher to allow removal of the projectile casing from the launcher after expulsion of the entangling projectile from the projectile casing.

In accordance with another aspect, a projectile deployment system is provided, including an entangling projectile having a pair of pellets and a tether connecting the pellets. A projectile casing can include a pair of sockets, each socket sized to carry one of the pellets. The pair of sockets can be angled relative to one another such that the pellets travel apart from one another as they are expelled from the projectile casing, with at least a portion of one of the sockets overlapping a portion of another of the sockets. A launcher can carry the projectile casing, and a selectively activatable pressure source can be carried by one of the launcher or the projectile casing. The pressure source can be capable of expelling the entangling projectile from the projectile casing toward a subject. The projectile casing can be removably engageable with the launcher to allow removal of the projectile casing from the launcher after expulsion of the entangling projectile from the projectile casing.

In accordance with another aspect, a projectile deployment system is provided, including an entangling projectile having a pair of pellets and a tether connecting the pellets. A projectile casing can include a pair of sockets, each socket sized to carry one of the pair of pellets, the pair of sockets being angled relative to one another such that the pellets travel apart from one another as they are expelled from the projectile casing, with at least a portion of one of the sockets overlapping a portion of another of the sockets. A cartridge blank can be carried by the projectile casing, the cartridge blank being capable of expelling the entangling projectile from the projectile casing toward a subject when activated. A launcher can carry a sliding firing bolt operable to activate the cartridge blank to expel the entangling projectile from the projectile casing toward the subject. The projectile casing can be removably engageable with the launcher to allow removal of the projectile casing from the launcher after expulsion of the entangling projectile from the projectile casing.

Additional features and advantages of the invention will be apparent from the detailed description which follows, taken in conjunction with the accompanying drawings, which together illustrate, by way of example, features of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The following drawings illustrate exemplary embodiments for carrying out the invention. Like reference numerals refer to like parts in different views or embodiments of the present invention in the drawings.

FIG. 1 is a top, bottom, front or rear view of an entangling projectile extended substantially to its full length in accordance with an embodiment of the invention;

FIG. 2A is a side view of a pellet and a portion of a tether of the projectile of FIG. 1;

FIG. 2B is an end view of the pellet of FIG. 2A;

FIG. 3A is a top view of a subject toward which an entangling projectile was launched, shown immediately prior to the entangling projectile engaging the subject;

FIG. 3B is a top view of the subject and projectile of FIG. 3A, shown shortly after the entangling projectile engaged the subject;

FIG. 4 is a front view of a portion of a subject in accordance with an embodiment of the invention, shown immediately prior to an entangling projectile engaging the subject's legs;

FIG. 5 is a front view of an entangling projectile in accordance with another embodiment of the invention, shown with the pellets pulling the tether into a taught condition;

FIG. 6 is a side view of a portion of an entangling projectile in accordance with another embodiment of the invention;

FIG. 7 is a top perspective view of a projectile deployment system of the present invention, shown in an exploded condition with a projectile casing being removed from or installed in a launcher;

FIG. 8 is a front view of the projectile casing of FIG. 7;

FIG. 9 is a rear view of the projective casing of FIG. 7;

FIG. 10 is a top, partially sectioned view of the projectile casing of FIG. 7;

FIG. 11 is a side, partially sectioned view of the projectile casing of FIG. 7;

FIG. 12 is another side, partially sectioned view of the projectile casing of FIG. 7; and

FIG. 13 is a side, partially sectioned view of the launcher of FIG. 7, shown with various components removed to reveal inner components of the launcher.

DETAILED DESCRIPTION

Reference will now be made to the exemplary embodiments illustrated in the drawings, and specific language will be used herein to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Alterations and further modifications of the inventive features illustrated herein, and additional applications of the principles of the inventions as illustrated herein, which would occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the invention.

Definitions

As used herein, the singular forms “a” and “the” can include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a pellet” can include one or more of such pellets, if the context dictates.

As used herein, the terms “firearm blank” or “blank cartridge” refer to the well-known blank cartridge that can be used with firearms. Such blank cartridges contain gunpowder but not a bullet or shot: as such, they can be discharged to produce only a high velocity pressure wave, without an accompanying shot or slug.

As used herein, the term “substantially” refers to the complete or nearly complete extent or degree of an action, characteristic, property, state, structure, item, or result. As an arbitrary example, an object that is “substantially” enclosed is an article that is either completely enclosed or nearly completely enclosed. The exact allowable degree of deviation from absolute completeness may in some cases depend upon the specific context. However, generally speaking the nearness of completion will be so as to have the same overall result as if absolute and total completion were obtained. The use of “substantially” is equally applicable when used in a negative connotation to refer to the complete or near complete lack of an action, characteristic, property, state, structure, item, or result. As another arbitrary example, a composition that is “substantially free of” an ingredient or element may still actually contain such item so long as there is no measurable effect as a result thereof.

As used herein, the term “about” is used to provide flexibility to a numerical range endpoint by providing that a given value may be “a little above” or “a little below” the endpoint.

Relative directional terms can sometimes used herein to describe and claim various components of the present invention. Such terms include, without limitation, “upward,” “downward,” “horizontal,” “vertical,” etc. These terms are generally not intended to be limiting, but are used to most clearly describe and claim the various features of the invention. Where such terms must carry some limitation, they are intended to be limited to usage commonly known and understood by those of ordinary skill in the art in the context of this disclosure.

As used herein, a plurality of items, structural elements, compositional elements, and/or materials may be presented in a common list for convenience. However, these lists should be construed as though each member of the list is individually identified as a separate and unique member. Thus, no individual member of such list should be construed as a de facto equivalent of any other member of the same list solely based on their presentation in a common group without indications to the contrary.

Numerical data may be expressed or presented herein in a range format. It is to be understood that such a range format is used merely for convenience and brevity and thus should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. As an illustration, a numerical range of “about 1 to about 5” should be interpreted to include not only the explicitly recited values of about 1 to about 5, but also include individual values and sub-ranges within the indicated range. Thus, included in this numerical range are individual values such as 2, 3, and 4 and sub-ranges such as from 1-3, from 2-4, and from 3-5, etc., as well as 1, 2, 3, 4, and 5, individually.

This same principle applies to ranges reciting only one numerical value as a minimum or a maximum. Furthermore, such an interpretation should apply regardless of the breadth of the range or the characteristics being described.

Invention

The present technology relates generally to non-lethal weapons systems, sometimes referred to as ensnarement or entanglement systems, that can be effectively used as an aid in impeding the progress of or detaining aggressive or fleeing subjects. Devices in accordance with the present technology can be advantageously used to temporarily impede a subject's ability to walk, run, or use his or her arms in cases where law enforcement, security personnel or military personnel wish to detain a subject, but do not wish to use lethal or harmful force or to engage in close proximity hand-to-hand combat. The technology provides a manner by which the arms or legs of a subject can be temporarily tethered or bound, to the extent that the subject finds it difficult to continue moving in a normal fashion.

While the present technology can be directed at any portion of a subject's body, the following discussion will focus primarily on use of the technology to temporarily tether or bind a subject's legs. It is to be understood, however, that the present technology is not limited to this application. In some cases, multiple portions of the subject's body can be targeted, such as both the arms and the legs.

As shown generally in FIGS. 1-5, the present technology provides an entangling projectile 12 that can be deployed toward a subject's legs to cause the projectile to wrap about the subject's legs. The projectile includes at least one flexible tether 16 and at least two pellets 14, coupled together by the tether. By engaging a subject with the entangling projectile, the subject is temporarily rendered partially or fully incapacitated and thereby restricted in his or her ability to flee or attack. The entangling projectiles of the present technology are launched toward a subject (100 in FIGS. 3A-4) by a launcher. In addition to the launchers discussed herein, numerous examples of suitable launchers are provided, as examples, in the above-referenced parent case, U.S. patent application Ser. No. 15/081,440, filed Mar. 25, 2016, which is hereby incorporated herein by reference in its entirety. Such launchers can include energy sources such as compressed gas, explosives/combustibles, mechanical springs, etc.

Generally speaking, a launcher for use with the present entangling projectiles will launch the projectile toward a subject 100 at a relatively high rate of speed. Typically, the projectile can be deployed toward a subject from a distance of between about 6 feet and about 30 feet (1.8 to 9.1 meters), and engages the subject within a matter of about 0.0075 to 0.0375 seconds (traveling at about 800 ft/sec (243.8 ms/)). After being deployed from the launcher, the entangling projectile will wrap about the subject's legs two or three or more times, causing the subject to be temporarily unable to effectively move. As the entangling projectile can be launched from some distance, law enforcement personnel can maintain a safe distance from a subject, yet still be able to effectively and safely temporarily restrain, disable or impede the subject.

Operation of the entangling projectile is shown generally in FIG. 4: after being released by a launcher, the projectile 12 travels toward a subject 100. As the projectile travels toward the subject, pellets 14 travel away from one another, resulting in the tether 16 being pulled substantially taught between the two. Once the projectile engages the subject (in the example shown in FIG. 4 the subject's legs are engaged), the pellets and tether wrap about the subject and thereby temporarily entangle and/or disable the subject.

A variety of differing pellet and tether combinations can be utilized in the present technology. In the examples shown in FIGS. 1-4, the projectile 12 is shown with two generic pellets 14 connected by a single tether 16. While more than two pellets can be utilized, the examples shown herein include only two. In some embodiments, the invention is limited to two, and only two, pellets connected by a single tether. In one aspect, the invention consists of two pellets and a single tether. In one aspect, the invention consists essentially of two pellets and a single tether. It has been found that limiting the number of pellets to two results in a more effective deployment system: the risk of tangling of the tether 16 is diminished and the pellets spread apart from one another much more cleanly and quickly after being deployed from the launcher. This results in a more consistent trajectory after deployment. This arrangement can also allow, with the proper launcher configuration, the projectiles to be more accurately directed toward a subject.

FIG. 5 illustrates further features of the entangling projectile 12. As referenced above, the projectile includes two pellets 14 coupled on opposing ends of a tether 16. In this embodiment, two and only two pellets are provided, coupled by only a single tether 16. The use of only two pellets has been found to be advantageous in that a much cleaner and accurate projectile can be directed toward a subject, and the projectile can more effectively engage the subject. The pellets 14 can apply equal and opposite forces, shown by example with directional indicators 102 and 104, upon tether 16. In this manner, the tether is pulled into a taught, linear configuration by the force of the pellets traveling away from one another.

The tether 16 can include no additional structure coupled thereto, with no additional structure extending therefrom. In this manner, the pellets 14 can pull the tether into the straight, uninterrupted, linear configuration shown. The tether and pellets can occupy substantially a common plane 106 in the configuration immediately prior to contacting a subject. As shown, this plane 106 is typically angularly offset from “true” horizontal 108, as the pellets are positioned at differing elevations prior to contact with the subject (as detailed further below). By omitting additional pellets or tethers, or other extraneous structure, the present technology can deliver an entangling projectile that engages subjects with a much higher rate of successful engagement.

FIG. 1 illustrates the projectile 12 extended to its full length “L_(O).” In one embodiment, the overall length of the tether is much longer than the size of pellets (L_(P)). The overall length can be on the order of seven feet (2.14 meters) or greater. The pellets can have a length “L_(P)” on the order of an inch (2.54 cm), and a diameter “D_(P)” on the order of ⅜ of an inch (0.95 cm). While differing embodiments of the technology can vary, it is generally desirable to maintain the pellets at a relatively small size to thereby limit the overall size requirements of the projectile casing that houses the pellets prior to deployment and to reduce the impact should a pellet hit the subject. In this manner, the technology can be provided in a lightweight, hand-held device.

The relationship of the pellet diameter, weight and length in relation to the tether length/weight can significantly affect the performance of the entangling projectile. It has been found that a pellet diameter of about 0.330 inches (0.84 cm) with a length of about 1 to 1.5 inches (2.54-3.81 cm) with a weight of about 5-6 grams combined with a tether of about 7 feet (2.13 m) weighing about 1 gram provides an effective entangling projectile. The present casing discussed below has been designed to effectively deliver such entangling projectiles with a high degree of precision and reliability.

The tether 16 can be formed from a variety of materials. In one aspect, the tether is formed from conventional nylon material. Waxed cord can also be used, as the wax can aid in packing and/or coiling the tether to properly fit within, and stay within, the tether compartments. In one embodiment, the tether can be formed from an elastic material.

In one example, the tether is formed from Kevlar™ cord, with a thickness of about 0.1 mm. A Kevlar tether has been found to perform well for a number of reasons. The Kevlar tether is very strong, and not as prone to breakage as other cords. In addition, the Kevlar material does not tend to “wick” adhesives as do other materials—thus minimizing drying/curing times of adhesive and reducing the tendency of the cord to become stiff with cured adhesive that have wicked long stretch of cord.

FIG. 6 illustrates a portion of one exemplary entangling projectile 12 a in accordance with an embodiment of the invention. In this example, pellet 14 a is provided that includes various features that aid in more accurately and effectively engaging a subject. A portion of tether 16 is shown extending from access hole 166 b, which is generally formed in or through a shank of the pellet 14 a. The tether can be secured to the shank by the use of adhesive applied through access hole 166 b. A hook assembly 180 can be attached atop the shank of the pellet, and can be secured to the shank via application of adhesive through access hole 166 a. Access holes 166 a and 166 b, which function much like rosettes, can be used to allow the hook structure or pellet to be coupled to the tether, or to one another. In the embodiment of FIG. 6, the hook assembly 180 can be positioned where desired, and a small amount of adhesive or other attachment material can be applied through access hole 166 a to mount the hook assembly in position. Access hole 166 b can be easily used in the same manner to mount the pellet 14 a to the tether 16.

The entangling projectile 12 a shown in FIG. 6 is but one example of the various types of projectiles that can be used with the present invention. Further examples are provided in the above-referenced parent case, U.S. patent application Ser. No. 15/399,537, filed Jan. 5, 2017, which is hereby incorporated herein by reference.

While the present projectiles can be used with variety of launchers, FIGS. 7 through 13 illustrate one exemplary system that can be utilized to effectively direct the entangling projectile toward a subject. As shown in exploded view in FIG. 7, the projectile deployment system 40 generally includes an entangling projectile that includes a pair of pellets 14 a, 14 b, and a tether 16 connecting the pellets (note that the tether is omitted from many of these views to enable a more clear description of other components). A projectile casing 44 is provided that can include a pair of sockets 30 a, 30 b (see FIGS. 8, 10 and 11, for example). Each socket can be sized and shaped to carry one of the pair of pellets: in the examples shown, socket 30 a carries pellet 14 a and socket 30 b carries pellet 14 b.

The projectile casing 44 can include a selectively activatable pressure source 50 (FIGS. 9-12). The pressure source can be carried by the projectile casing, independently of the launcher or other components of the system. The pressure source can be capable of expelling the entangling projectile from the projectile casing toward a subject 100. The system can also include a launcher 42 that can carry an activator operable to activate the pressure source to expel the entangling projectile from the projectile casing toward the subject. One example of activator 54 is discussed in more detail below in relation to FIG. 13.

The projectile casing 44 can be removably engageable with the launcher 42 to allow removal of the projectile casing from the launcher after expulsion of the entangling projectile 12 from the projectile casing. In this manner, the present technology provides a deployment system that includes two separate and distinct components: the launcher 42 and the projectile casing 44. In one embodiment, the pellets 14 a, 14 b and tether 16 are carried by the projectile casing, as is the pressure source 50. The activator (54 in FIG. 13, for example) is carried by the launcher. Generally, all components necessary to power the activator are carried by the launcher, and all components necessary to launch the projectile are carried by the projectile casing. In this manner, the unit as a whole is not operable until the casing 44 and the launcher 42 are functionally engaged with one another. Once the two are engaged with one another, operation of the launcher 42 (and the activator 54) results in expulsion of the entangling projectile from the casing 44.

In the example shown, launcher 42 includes a trigger panel 46, discussed in more detail below in connection with FIG. 13. Generally, activation of the trigger panel causes the launcher 42 to activate the pressure source 50, which results in expulsion of the entangling projectile from the casing 44. Once the projectile has been deployed from a particular projectile casing, that casing can be removed and a fresh projectile casing with a preinstalled entangling projectile 12 and pressure source can be installed within the launcher. Activation of a first casing and replacement with a fresh casing can be achieved in a matter of seconds. Thus, law enforcement, security, military, etc., personnel can very rapidly exchange a spent projectile casing with a fresh projectile casing that is loaded and ready to activate by the launcher.

As the casing 44 can include all the disposable components of the system, the launcher 42 can have an extended useful life and rarely, if ever, need be replaced or maintained. The entangling projectile 12 and pressure source 50 can be installed within the projectile casing in a controlled environment, thereby ensuring that a clean, effective deployment can be consistently achieved. Projectile casings can be provided to law enforcement personnel loaded and ready to use, requiring only that the personnel insert the projectile casing into the launcher. While it is contemplated that end users of the device could reload the projectile casing with a pressure source and entangling projectile, they are not required to do so and is felt likely that quality can be much better controlled by preloading the projectile casing with both the entangling projectile and the pressure source.

The casing 44 can be held within the launcher 42 in a variety of manners. In one embodiment, the casing can “snap” into the launcher and be firmly held in position by one or more mechanical locks (not shown in detail). The locks can be easily disengaged by an end user when it is desired to remove the casing from the launcher.

FIG. 8 illustrates a front view of the casing 44. In this view, pellets 14 a, 14 b can be seen stored, ready for use, in sockets 30 a, 30 b, respectively. Tether storage compartments 32 can be provided and can consist of shaped depressions formed in the projectile casing to allow the tether (not shown in this view) to be stored adjacent the pellets prior to use. The projectile casing can include a front shroud 56 that can serve to create a protective pocket 58 around the tether and the pellets. As shown in FIG. 7, a cover 57 can be applied over the pocket 58 and can be attached to the shroud 56 to protect the pocket from exposure to contaminants and/or to contain the entangling projectile within the projectile casing.

In the examples shown in FIGS. 9-12, the pressure source 50 comprises a cartridge blank. This type of pressure source is well known to contain gunpowder that is typically activated by striking a primer formed in the cartridge. The blank cartridge contains no slug; deployment of the cartridge results only in a high-pressure wave being directed from the projectile casing. This high-pressure wave is utilized by the present technology to propel the entangling projectile from the system at high velocity. In one embodiment of the invention, the cartridge blank can be irremovably attached to the cartridge such that the cartridge is a single actuation cartridge. In this manner, installation of the cartridge can be done in a controlled manufacturing environment, to ensure the proper cartridge is use, that the cartridge is properly installed, and that the casing 44 is otherwise ready for use. The cartridge can be secured to the casing by adhesive, mechanical crimp, etc.

By irremovably attaching the cartridge blank 50 to the casing 44, there is little to no risk that an actual bullet or “real” cartridge can be accidentally inserted into the casing. In addition, a length and configuration of the central bore 60 can be configured to prevent the insertion of anything other than a properly designed blank cartridge 50.

In contrast, the entangling projectile 12 is removably installed within the projectile casing. All components of the entangling projectile (i.e., the pellets 14 a, 14 b and tether 16) are installed within the casing such that they can be readily and completely ejected from the casing when the pressure source 50 is deployed. The geometry of the sockets 30 a, 30 b within the casing 44, along with the geometry of the pellets, has been carefully designed to ensure that a consistent, effective deployment of the entangling projectile is achieved each time the launcher is activated. FIGS. 10-12 illustrate this geometry in more detail.

A shown in top view in FIG. 10, the sockets 30 a and 30 b are angled relative to one another such that the pellets 14 a, 14 b travel apart from one another as they are expelled from the projectile casing 44. In the example shown, at least a portion of one of the sockets extends beneath a portion of another of the sockets within the cartridge (in this example, “bottom” socket 30 b extends beneath “upper” socket 30 a). Depending upon the particular arrangement, one of the pellets can overlap, or extend beneath or above, another of the pellets when the pellets are installed within the sockets. In the example shown, pellet 30 b extends beneath (when viewed perpendicularly from a horizontal plane on which the casing sits) pellet 30 a when the pellets are stored and ready for activation. As shown in side view in FIG. 11, in one example, the sockets can also be, or can alternatively be, vertically offset relative to one another and can extend in planes parallel to one another.

The casing 44 can also include a central bore 60, shown in FIGS. 10-12, located immediately adjacent the discharge end of pressure source or blank cartridge 50. In this embodiment, upon activation, the blank cartridge 50 discharges into the central bore a high-pressure wave. This high-pressure wave then travels into both sockets 30 a and 30 b, generally distributed equally among the two. Thus, each of socket 30 a and socket 30 b terminate into, or are at least in fluid communication with, central bore 60.

As discussed, each of socket 30 a, 30 b can hold one pellet, 14 a, 14 b, respectively, prior to deployment of the pellets from the projectile casing. As a high-pressure wave is generated by the cartridge, it is directed through the central bore and is applied to the pellets held in sockets 30 a, 30 b. The pellets are then forcibly expelled from the inner block toward the subject.

As best appreciated from FIG. 10, the sockets 30 a, 30 b can be oriented at an angle “α” relative to one another. While the angle can vary, it is generally an acute angle, typically ranging from about 10 degrees to about 60 degrees. In another embodiment, the angle can range between about 25 degrees to about 45 degrees. In another embodiment, the angle is about 30 degrees. By angling the sockets relative to one another, the pellets 14 a, 14 b are directed away from one another as they are expelled from the sockets. In this manner, the pellets separate relative to one another very quickly, pulling the tether 16 taut between them so that the tether can fully extend prior to engaging the subject. The forward energy applied to the pellets is both split between the two pellets and angled by the nature of the sockets: as such, in the event that a pellet inadvertently directly contacts a subject, the force is less than that otherwise applied by a full charge, minimizing the risk of injury to the subject.

The resulting launch is shown in FIGS. 3A and 3B. In FIG. 3A, the entangling projectile 12 has been launched toward a subject 100 (shown from above) and has traveled to engage the subject. Prior to contacting the subject, the tether 16 has been pulled taut, such that the pellets 14 are travelling in a linear direction toward the subject. Immediately after the tether 16 contacts the subject, the momentum of the pellets, prevented by the tether from continuing along their present trajectory, causes them to begin moving toward one another (shown in FIG. 3B), which momentum will cause the pellets to orbit about the subject.

As the pellets orbit about the subject's legs, the tether wraps itself tightly about the subject's legs. Note that, as the tether wraps about the subject's legs, the rotational velocity of the pellets will increase, causing them to wrap more quickly as the effective length of the tether is decreased. In an average deployment, the pellets will wrap themselves about the subject's legs 2-3 times, resulting in the tether being wrapped about the subject's legs 4-6 times. As will be appreciated, a subject will at least temporarily have great difficulty moving after the tether is thus wrapped about his or her legs.

Referring again to FIG. 10, in this example the axes 31 a, 31 b of the sockets 30 a, 30 b, respectively, can intersect one another at a location within the casing 44. That is, a portion or section of one of the sockets can intersect with a portion or section of the other socket within the confines of the casing. In the example shown, sockets 30 a and 30 b intersect or overlap where each socket is fluidly coupled to central bore 60. The sockets can also be stacked horizontally relative to one another, to provide an overlapping configuration of one atop the other. In this manner, the sockets can be spaced relatively close to one another while also maintaining a desired angle between the two. The location at which the sockets intersect can be adjusted nearer to or further from the central bore.

This stacking/overlap configuration allows the use of a relatively narrow projectile casing 44 regardless of the angle at which it is desired to orient the sockets. If the sockets were merely oriented in a side-by-side relationship, without overlapping axes, the width or diameter of the projectile casing would have to be increased as the angle “a” between the socket axes 31 was increased. By overlapping the axes, however, this limitation in arranging the sockets is eliminated. This can allow the projectile casing to be much more narrow than otherwise possible. This results in a launcher system that can be easily carried by law enforcement personnel, similar to conventional firearms or Taser. While not so limited, in one aspect of the invention, the projectile casing 44 can be formed having a diameter or maximum width of less than about two inches (5.1 cm), and as little as 1½ inches (3.8 cm) or less. The projectile casing can be formed with a length of less than about 2½ inches (6.4 cm), or as little as two inches (5.1 cm) or less. Overlapping or stacking of the sockets also allows a vertical displacement of the pellets to differ as the pellets contact the subject. This vertical offset of the pellets is discussed in more detail in the parent applications referenced above.

FIG. 13 illustrates one example of the launcher 42, and some of the components within the launcher. Note that several operable components of the launcher have been omitted from this view in the interest of more clearly illustrating operable principals of the launcher. In this example, the activator comprises a sliding firing bolt 54. The firing bolt can include an internal spring 66 that can be biased into a compressed condition to ready the bolt for firing. This can be accomplished by a sliding “cocking” mechanism (not shown in detail) that can be used to compress the internal spring. Trigger panel 46 (which is generally accessible from atop the launcher) can be depressed when it is desired to activate the launch of the entangling projectile. Depressing panel 46 causes lever 46 a to depress lever 68, which in turn causes tang 70 to release the firing bolt. The tension in spring 66 then propels bolt 54 along a predetermined trajectory. The blank cartridge 50, when the casing was installed within the launcher, is positioned at the end of the bolt's trajectory. The bolt impacts the cartridge, causing the primer to ignite and generate a high-pressure wave.

While FIG. 13 illustrates general operation of the triggering bolt 54, it is to be understood that many components contributing to operation of the launcher have been omitted from this view. These include, without limitation, structure used to “cock” the firing bolt 54 into ready position; safety mechanisms that can prevent inadvertent activation of the launcher, latching mechanisms that latch the casing 44 to or within the launcher 42, etc. One of ordinary skill in the art, having possession of this disclosure, could readily appreciate the operation of such components.

In addition to utilizing a blank cartridge as the pressure source 50, the pressure source can be provided in a number of other forms. In one example, the pressure source includes a compressed gas cylinder that can be activated in much the same way as discussed in relation to the blank cartridge. In other embodiments, an electronic triggering system can be utilized. In this example, an electronic switch (shown schematically for exemplary purposes at 80 b in FIG. 13) can be provided within the launcher. Contact pad 80 a can be provided on the casing (shown schematically for exemplary purposes at 80 b in FIG. 9) on the launcher. A complementary pad (not shown) can be associated with the launcher. Activation of the triggering panel 46 can activate the electronic switch, which can then generate an electronic signal that can be transferred to the projectile casing through pad 80 a to thereby cause activation of the pressure source. Pad 80 a can ensure that the electronic signal cannot be provided to the casing unless the casing is properly installed within the launcher.

By packaging the pressure source 50 and the entangling projectile 12 in the removable projectile casing 44, all of the components that generate force (and react to force) are contained in a single unit. There are no unnecessary gaps or connections between the power source and the entangling projectile. This aspect also eliminates any need to reload two parts, the entangling projectile and the pressure source, as these are contained within one removable part, the projectile casing, which can be easily and quickly loaded into or unloaded from the launcher 42.

While much of the discussion above focused on the projectile casing and launcher used in the present technology, the ballistic features of the entangling projectiles must be carefully matched with the operable features of the casing and launcher. Generally, the entangling projectiles of the present technology are provided as electrically inert. That is, they are not attached to an electrical charge source, nor do they require an electrical charge to subdue or entangle a subject. As used herein, the term “electrically inert” is understood to refer to a condition in which the projectiles, and pellets and tether, do not carry an electrical charge other than that carried by inert objects within the environment in which the projectiles are deployed. Thus, while some static charge may be carried by most objects in such an environment, the projectiles (pellets and tether) do not carry any additional charge. In most embodiments, the tether and pellets similarly need not carry any other structure capable of delivering an electrical charge to a subject.

It is to be understood that the above-referenced arrangements are illustrative of the application for the principles of the present invention. Numerous modifications and alternative arrangements can be devised without departing from the spirit and scope of the present invention while the present invention has been shown in the drawings and described above in connection with the exemplary embodiments(s) of the invention. It will be apparent to those of ordinary skill in the art that numerous modifications can be made without departing from the principles and concepts of the invention as set forth in the examples. 

1. A projectile deployment system, comprising: an entangling projectile, including a pair of pellets and a tether connecting the pellets; a projectile casing, including: a pair of sockets, each socket sized to carry one of the pair of pellets; a selectively activatable pressure source, carried by the projectile casing, the pressure source being capable of expelling the entangling projectile from the projectile casing toward a subject; and a launcher, carrying an activator operable to activate the pressure source to expel the entangling projectile from the projectile casing toward the subject; the projectile casing being removably engageable with the launcher to allow removal of the projectile casing from the launcher after expulsion of the entangling projectile from the projectile casing.
 2. The system of claim 1, wherein the pressure source comprises a cartridge blank.
 3. The system of claim 2, wherein the cartridge blank is irremovably attached to the cartridge projectile casing such that the cartridge is a single actuation cartridge.
 4. The system of claim 3, wherein the entangling projectile is removably installed within the projectile casing.
 5. The system of claim 1, wherein the pressure source comprises compressed gas.
 6. The system of claim 1, wherein the activator comprises a sliding firing bolt.
 7. The system of claim 6, wherein the pressure source is positioned in a trajectory of the sliding firing bolt when the projectile casing is engaged with the launcher.
 8. The system of claim 1, wherein the activator comprises an electronic switch, and wherein the pressure source is electronically coupled to the electronic switch when the cartridge is engaged with the launcher.
 9. The system of claim 1, wherein the pair of sockets are angled relative to one another such that the pellets travel apart from one another as they are expelled from the projectile casing, at least a portion of one of the sockets extending beneath a portion of another of the sockets within the cartridge.
 10. The system of claim 9, wherein the sockets are vertically offset relative to one another and extend in planes parallel to one another.
 11. The system of claim 1, further comprising one or more engagement hooks coupled to at least one of the pair of pellets, the engagement hooks being operable to engage clothing worn by a subject of the deployment system to aid in retaining the entangling projectile about the subject.
 12. A projectile deployment system, comprising: an entangling projectile, including a pair of pellets and a tether connecting the pellets; a projectile casing, including a pair of sockets, each socket sized to carry one of the pellets; the pair of sockets being angled relative to one another such that the pellets travel apart from one another as they are expelled from the projectile casing, at least a portion of one of the sockets overlapping a portion of another of the sockets; and a launcher, carrying the projectile casing; a selectively activatable pressure source carried by one of the launcher or the projectile casing, the pressure source capable of expelling the entangling projectile from the projectile casing toward a subject.
 13. The system of claim 12, wherein the pressure source is carried by the casing and the activator is carried by the launcher.
 14. The system of claim 12, wherein the activator comprises a sliding firing bolt.
 15. The system of claim 14, wherein the pressure source is positioned in a trajectory of the sliding firing bolt when the projectile casing is engaged with the launcher.
 16. The system of claim 15, wherein the pressure source comprises a cartridge blank.
 17. The system of claim 12, wherein the sockets are vertically offset relative to one another and extend in planes parallel to one another.
 18. The system of claim 12, wherein the pellets overlap one another when installed within the sockets.
 19. The system of claim 12, wherein the sockets are oriented at an angle of between about 25 degrees and about 45 degrees relative to one another.
 20. The system of claim 12, wherein the pressure source is in fluid communication with a single discharge bore, the single discharge bore being in fluid communication with each of the sockets.
 21. The system of claim 12, further comprising one or more engagement hooks coupled to at least one of the pair of pellets, the engagement hooks being operable to engage clothing worn by a subject of the deployment system to aid in retaining the entangling projectile about the subject.
 22. A projectile deployment system, comprising: an entangling projectile, including a pair of pellets and a tether connecting the pellets; a projectile casing, including: a pair of sockets, each socket sized to carry one of the pair of pellets, the pair of sockets being angled relative to one another such that the pellets travel apart from one another as they are expelled from the projectile casing, at least a portion of one of the sockets overlapping a portion of another of the sockets; a cartridge blank, carried by the projectile casing, the cartridge blank being capable of expelling the entangling projectile from the projectile casing toward a subject when activated; and a launcher carrying a sliding firing bolt operable to activate the cartridge blank to expel the entangling projectile from the projectile casing toward the subject; the projectile casing being removably engageable with the launcher to allow removal of the projectile casing from the launcher after expulsion of the entangling projectile from the projectile casing. 